8 Responses. > 1  the Moon takes an elliptical path around the Earth. The planets make nearly elliptical orbits around the Sun, close enough for reasonable approximations, but the Moonâs Orbit around the Earth is sufficiently influenced by the Sun that it follows a path detectably different from an ellipse.
Quick Answer. In 1896, French scientist Antoine Henri Becquerel discovered radioactivity which was an early contribution to atomic theory. He discovered this phenomenon while experimenting with uranium and a photographic plate. Continue Reading.
people think that j.j. Thompson discovered the electron in 1897, but nikola tesla has records of his discovery of negatively charged particles being responsible for electric c â¦ urrents years before Thomson discovered it. Atoms are able to bond together because of what is known as the octet rule, which is followed by mâ¦. 2  Understanding Electrons An electron is a subatomic particle that revolves around the protons and neutrons in an atom's central nucleus.